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ProfiLux 4 Programming Guide

EN 2017-02-06 72

illumination one arbitrary 1-10 V-interface.

Current pump

Then select the Number of the pump.

This interface is then used by the current simulation.

Always off

This interface has no function.

Variable Illumination

Then select the Number of the variable illumination.

Herewith you can assign a Variable Illumination (siehe auch unter

Illumination ->Variable Illumination) to this interface.

Constant flow

Then select the Number of a flow sensor.

With this function this interface is able to control a variable-speed

pump in order to obtain a constant flow, see also Flow.

Furthermore you can assign a 1-10 V-interface to a control loop. For this you have to select

first one of the available controllers, e.g. Temperature 1 or pH-value 1.

The selected controller outputs then a voltage that is proportional to the control deviation (=

deviation from nominal value to actual value) at this interface.

After that you can set the Minimal and Maximal voltage of this interface. As a rule, the voltage

range is 1 V to 10 V.

It may be necessary to set the minimum voltage (at 1%) (Possible range: 0 V to 4 V). This may

be due to the following reasons:

 Not all tubes are equally suitable for dimming. Further information concerning the

dimming suitability can be obtained from the tube manufacturer. Most of the

problems occur in the lower dimming range (up to ca. 10%). Here it can happen that

the tube simply switches off after a certain time (mostly few minutes). Solution:

Increase of the Minimal voltage.

 Not all dimmable ballasts behave in the same way. The lower dim setting should

normally be reached at a voltage supply of 1V, full light intensity at 10V. We have

Example: Temperature control

If the water temperature exceeds the set temperature, then a voltage is

output that is proportional to the temperature control deviation.

Simply put: The warmer the more voltage.

With this it is possible to control a controllable cooler – e.g. our

PropellerBreeze with the control electronics PropellerControl – and so to

operate it as energy-saving and as low-noised as possible.

GHL ProfiLux 4 Programming Guide

Other manuals for GHL ProfiLux 4